SumOfUs, an international consumer watchdog with more than 14 million members around the world, is demanding that Facebook CEO Mark Zuckerberg step down amid several now-public controversies regarding the company’s use of user data, and its collection and distribution.

In reaction to the news, and in light of other issues concerning privacy, censorship and data collection at Facebook, Lisa Lindsley, Capital Markets Advisor for SumOfUs, issued the following statement, calling on Facebook’s Mark Zuckerberg to step down as CEO and Board Chair.

“Facebook CEO Mark Zuckerberg should step down. For too long, Mark Zuckerberg has kept users in the dark about how it censors speech, allowed companies like SCL and Cambridge Analytica to take advantage of users on its platform, and collected private user call and text data. This is unacceptable.

“Last year, we worked with Facebook shareholders to urge that the company create an independent board chair, warning that the current structure, where Zuckerberg serves as his own boss, was a recipe for disaster.

“Multiple scandals later, it’s clear that enough is enough. Zuckerberg has proven himself unable or unwilling to protect Facebook’s user data or privacy, which is why we firmly believe that shareholders should take action to remove him as CEO and Board Chair.

“It’s time for new leadership at Facebook—one that protects users from unethical data collection, state-sponsored censorship, and privacy violations.”

SumOfUs also targeted Mark Zuckerberg with a petition last year over Facebook’s removal of Black Lives Matter-related videos and police violence, and other state-sponsored censorship around the globe. The joint petition gathered nearly 600,000 signatures.